Burlesque Cupcake Cookoff?

Well, it's probably not for most groups, but it sounds like a burlesque cupcake cookoff worked at SXSW anyway. But it does make me think that there's something equally fascinating in an offbeat kind of way that could get your attendees, um, excited, too. So geeks like cupcakes and g-strings--what quirky things do your people have in common? Could you build an event around them? Worth thinking about, anyway.